A study of the crystallization kinetics of Sb-Se-Ge and Sb-Se-Ge-In chalcogenide glasses for applications as phase change materials

ABSTRACTChalcogenide glasses are unquestionably one of the most popular materials known for their phase change property. Phase change materials (PCM) have a key role in the field of photonics, memory devices, imaging, etc. With an aim to study the worth of ternary Sb10Se90-xGex (x = 0, 19, 21, 23, 25, 27) and quaternary Sb10Se65Ge25-yIny (y = 0, 3, 6, 9, 12, 15) chalcogenide systems as PCM, the composition variation and effect of dopants on the thermal properties of two systems has been probed. The thermal stability of two glass systems has been investigated using criteria such as the S parameter, fragility index, and rate constants at glass transition and crystallization temperatures. The mechanism of the phase change phenomenon occurring in the glasses has been studied using the Avrami index.KEYWORDS: Chalcogenidesthermal stabilityAvrami exponentcrystallization Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThis manuscript has no associated data, or the data will not be deposited. [Authors’ comment: The related data and results obtained have been shown/reported in the figures and tables.]